Shape-induced anisotropy in epitaxial Fe3O4 nanopillars

M. Guan; G. Dong; Z. Hu; B. Peng; Y. He; W. Z. Cui; Z. Zhou; M. Liu

doi:10.1016/j.physleta.2019.125850

Shape-induced anisotropy in epitaxial Fe₃O₄ nanopillars

M. Guan
, G. Dong
, Z. Hu
, B. Peng
, Y. He
, W. Z. Cui
, Z. Zhou
, M. Liu

Faculty of Electronic and Information Engineering

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Fe₃O₄ nanopillars with remarkably high uniformity and crystallinity are grown on (100)-oriented magnesium aluminate substrates by pulsed laser deposition with a simple anodic-aluminum-oxide template method. Compared with Fe₃O₄ full film, the nanopillars exhibit higher in-plane magnetic saturation field and lower out-of-plane saturation field. The angular-dependent ferromagnetic resonance, investigated by electron spin resonance spectroscopy, confirms the shape-induced anisotropy change in Fe₃O₄ nanopillars. High Gilbert damping parameter of 0.23 is obtained by measuring the resonance field at different microwave frequencies.

Original language	English
Article number	125850
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	383
Issue number	27
DOIs	https://doi.org/10.1016/j.physleta.2019.125850
State	Published - 22 Sep 2019

Keywords

AAO template
FeO nanopillars
Ferromagnetic resonance
Shape anisotropy

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10.1016/j.physleta.2019.125850

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title = "Shape-induced anisotropy in epitaxial Fe3O4 nanopillars",

abstract = "Fe3O4 nanopillars with remarkably high uniformity and crystallinity are grown on (100)-oriented magnesium aluminate substrates by pulsed laser deposition with a simple anodic-aluminum-oxide template method. Compared with Fe3O4 full film, the nanopillars exhibit higher in-plane magnetic saturation field and lower out-of-plane saturation field. The angular-dependent ferromagnetic resonance, investigated by electron spin resonance spectroscopy, confirms the shape-induced anisotropy change in Fe3O4 nanopillars. High Gilbert damping parameter of 0.23 is obtained by measuring the resonance field at different microwave frequencies.",

keywords = "AAO template, FeO nanopillars, Ferromagnetic resonance, Shape anisotropy",

author = "M. Guan and G. Dong and Z. Hu and B. Peng and Y. He and Cui, \{W. Z.\} and Z. Zhou and M. Liu",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = sep,

day = "22",

doi = "10.1016/j.physleta.2019.125850",

language = "英语",

volume = "383",

journal = "Physics Letters, Section A: General, Atomic and Solid State Physics",

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TY - JOUR

T1 - Shape-induced anisotropy in epitaxial Fe3O4 nanopillars

AU - Guan, M.

AU - Dong, G.

AU - Hu, Z.

AU - Peng, B.

AU - He, Y.

AU - Cui, W. Z.

AU - Zhou, Z.

AU - Liu, M.

PY - 2019/9/22

Y1 - 2019/9/22

N2 - Fe3O4 nanopillars with remarkably high uniformity and crystallinity are grown on (100)-oriented magnesium aluminate substrates by pulsed laser deposition with a simple anodic-aluminum-oxide template method. Compared with Fe3O4 full film, the nanopillars exhibit higher in-plane magnetic saturation field and lower out-of-plane saturation field. The angular-dependent ferromagnetic resonance, investigated by electron spin resonance spectroscopy, confirms the shape-induced anisotropy change in Fe3O4 nanopillars. High Gilbert damping parameter of 0.23 is obtained by measuring the resonance field at different microwave frequencies.

AB - Fe3O4 nanopillars with remarkably high uniformity and crystallinity are grown on (100)-oriented magnesium aluminate substrates by pulsed laser deposition with a simple anodic-aluminum-oxide template method. Compared with Fe3O4 full film, the nanopillars exhibit higher in-plane magnetic saturation field and lower out-of-plane saturation field. The angular-dependent ferromagnetic resonance, investigated by electron spin resonance spectroscopy, confirms the shape-induced anisotropy change in Fe3O4 nanopillars. High Gilbert damping parameter of 0.23 is obtained by measuring the resonance field at different microwave frequencies.

KW - AAO template

KW - FeO nanopillars

KW - Ferromagnetic resonance

KW - Shape anisotropy

UR - https://www.scopus.com/pages/publications/85069952400

U2 - 10.1016/j.physleta.2019.125850

DO - 10.1016/j.physleta.2019.125850

M3 - 文章

AN - SCOPUS:85069952400

SN - 0375-9601

VL - 383

JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 27

M1 - 125850

ER -

Shape-induced anisotropy in epitaxial Fe₃O₄ nanopillars

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Keywords

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